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-rw-r--r--firmware/common/file.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/firmware/common/file.h b/firmware/common/file.h
index 3233b40..58fb22d 100644
--- a/firmware/common/file.h
+++ b/firmware/common/file.h
@@ -24,9 +24,11 @@
#define SEEK_CUR 1
#define SEEK_END 2
+#ifndef O_RDONLY
#define O_RDONLY 0
#define O_WRONLY 1
#define O_RDWR 2
+#endif
#ifndef SIMULATOR
extern int open(char* pathname, int flags);